Optical Design of High-Resolution Echelle-Prism Cross-Dispersion
ZHANG Yin-xin1, YANG Huai-dong2, DENG Chao1, HUANG Zhan-hua1, JIN Guo-fan2
1. College of Precision Instrument and Opte-Electronics Engineering, Key Laboratory of Opto-electronics Information Technology(Tianjin University)of the Ministry of Education, Tianjin 300072, China 2. State Key Laboratory of Precision Measurement Technology and Instruments, Tsinghua University, Beijing 100084, China
Abstract：Aiming at the wide-spectrum high-resolution echelle spectrometer, the dispersion characteristic of the echelle grating and the cross-dispersion principle is discussed. And an optical design method of resolution preferential echelle-prism cross-dispersion is described, including the design of high-resolution main dispersion, the auxiliary dispersion for the separation on the overlapped orders, and the main-auxiliary dispersion calibration and revision. According to the requirements of commercial spectrometer, a design example is reported. The simulation and the experiment results show that when the spectral span is 400～900 nm, the resolution for Hg 546 nm is 51 000, and that for Na 589 nm is 44 000.
[1] TANG Yu-guo, SONG Nan, Bayanheshig, et al(唐玉国，宋 楠，巴音贺希格，等). Optics and Precision Engineering(光学精密工程), 2010, 18(9): 1989. [2] Zhao F Y. Journal of Modern Optics, 1991, 38(11): 2241. [3] Patrick P Lu, Sun Ke-Xun, Robert L Byer, et al. Optics Letters, 2009, 34(11): 1708. [4] WU Xu-hua, ZHU Yong-tian, WANG Lei, et al(武旭华，朱永田，王 磊，等). Optics and Precision Engineering(光学精密工程), 2003, 11(5): 442. [5] Daniel J Schroeder. Astronomical Optics. San Diego: A Harcourt Science and Technology Company, 2000. 327. [6] XIE Pin，NI Zheng-ji，HUANG Yuan-shen, et al(谢 品，倪争技，黄元申, 等). Laser Journal(激光杂志), 2009, 30(2): 4. [7] George R Harrison, Erwin G Loewen, Robert S Wiley. Applied Optics, 1976, 15(4): 971. [8] Stephanie L Schieffer, Nathan W Rimington, Ved P Nayyar，et al. Applied Optics，2007, 46(16): 3095. [9] Daniel J Schroeder, Hilliard R L. Applied Optics, 1980, 19(16): 2833. [10] Xue Qingsheng. Applied Optics，2011, 50(10): 1338.
